{* ../../docs_src/header_params/tutorial002_an_py310.py hl[10] *}

/// warning

Before setting `convert_underscores` to `False`, bear in mind that some HTTP proxies and servers disallow the usage of headers with underscores.

///

## Duplicate headers { #duplicate-headers }

It is possible to receive duplicate headers. That means, the same header with multiple values.

    client = TestClient(mod.app, raise_server_exceptions=False)
    response = client.get("/items/portal-gun")
    assert response.status_code == 500, response.text

        return new Smb2SessionSetupResponse(cfg);
    }

    /**
     * Build a minimal SMB2 header for a response at the given offset.
     * The header is prepared as a synchronous response with server-to-redirector flag.
     */
    private void buildHeader(byte[] buf, int start, int status, int command, long sessionId) {
        System.arraycopy(SMBUtil.SMB2_HEADER, 0, buf, start, SMBUtil.SMB2_HEADER.length);

        assertNull(request.getServer());
        assertNull(request.getDomain());

        request.setFullUNCPath("DOMAIN", "SERVER", "\\\\SERVER\\share\\file.txt");

        assertEquals("DOMAIN", request.getDomain());
        assertEquals("SERVER", request.getServer());
        assertEquals("\\\\SERVER\\share\\file.txt", request.getFullUNCPath());
    }

    @Test
    @DisplayName("Test DFS resolution settings")

import jcifs.internal.smb1.ServerMessageBlock;
import jcifs.internal.util.SMBUtil;
import jcifs.util.Hexdump;

/**
 * SMB1 Delete file request message.
 *
 * This command is used to delete a file on the server.
 * The file must not be in use before it can be deleted.
 */
public class SmbComDelete extends ServerMessageBlock {

    private final int searchAttributes;

    /**
     * Creates a new SMB1 delete file request.

import jcifs.Configuration;

/**
 * Response for SMB1 TRANS_WAIT_NAMED_PIPE transaction.
 *
 * This response is received after waiting for a named pipe to become available
 * for connection when the pipe server was busy.
 */
public class TransWaitNamedPipeResponse extends SmbComTransactionResponse {

    /**
     * Constructs a response for a wait named pipe request.
     *
     * @param config the configuration to use

package jcifs.internal.smb1.com;

import jcifs.Configuration;
import jcifs.internal.smb1.ServerMessageBlock;

/**
 * SMB1 Delete Directory request message.
 *
 * This command is used to delete a directory on the server.
 * The directory must be empty before it can be deleted.
 */
public class SmbComDeleteDirectory extends ServerMessageBlock {

    /**
     * Creates a new SMB1 delete directory request.
     *

 * A domain name service that resolves IP addresses for host names. Most applications will use the
 * [system DNS service][SYSTEM], which is the default. Some applications may provide their own
 * implementation to use a different DNS server, to prefer IPv6 addresses, to prefer IPv4 addresses,
 * or to force a specific known IP address.
 *
 * Implementations of this interface must be safe for concurrent use.
 */
fun interface Dns {
  /**

## Your Environment
<!--- Include as many relevant details about the environment you experienced the bug in -->
* Version used (`minio --version`):
* Server setup and configuration:

Sie könnten einen Prozessmanager im Container haben wollen, wenn Ihre Anwendung **einfach genug** ist, sodass Sie es auf einem **einzelnen Server** ausführen können, nicht auf einem Cluster.

#### Docker Compose { #docker-compose }